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Proceedings Paper

An effective image enhancement filtering for noisy image sequences
Author(s): Ho-Young Lee; Du-Sik Park; Seong-Deok Lee; Chang-Yeong Kim
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Paper Abstract

This paper proposes a method of filtering a digital sensor image to efficiently reduce noise and to improve the sharpness of an image. To reduce the noise in an image captured by conventional image sensor, the proposed noise reduction filter selectively outputs one of results obtained by recursive temporal and spatial noise filtering values. By proposed noise filtering method, image detail can be well preserved and noise filtering artifacts which can be generated along the moving object boundary in image sequences by applying temporal noise filtering are prevented. Since the sharpness of noise filtered image can be inevitably deteriorated by noise filtering, the adaptive noise suppressed sharpening filter is also proposed. The proposed sharpening filter generates filter mask adaptively according to the pixel similarity information within filter mask and can obtain the continuous image quality by the easy-controllable gain control algorithm without noise boost-up in the smooth region.

Paper Details

Date Published: 10 February 2006
PDF: 9 pages
Proc. SPIE 6069, Digital Photography II, 60690E (10 February 2006); doi: 10.1117/12.643658
Show Author Affiliations
Ho-Young Lee, Samsung Advanced Institute of Technology (South Korea)
Du-Sik Park, Samsung Advanced Institute of Technology (South Korea)
Seong-Deok Lee, Samsung Advanced Institute of Technology (South Korea)
Chang-Yeong Kim, Samsung Advanced Institute of Technology (South Korea)

Published in SPIE Proceedings Vol. 6069:
Digital Photography II
Nitin Sampat; Jeffrey M. DiCarlo; Russel A. Martin, Editor(s)

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